Actually, this was the full solution:
At the beginning of the script:
# Suppressing all output/warnings/try errors:
# Open connection to black hole
con=file(open="/dev/null")
# Don't print anything to screen
sink(file=con, type="output")
# Don't print messages (e.g. errors/warnings)
sink(file=con, type="message")
At the end of the script:
# Turn off output sink
sink()
# Turn off message sink
sink(type="message")
# Close connection to black hole
close(con)
On Thu, Jul 24, 2014 at 12:27 PM, Nick Matzke <mat...@berkeley.edu> wrote:
>
> On Thu, Jul 24, 2014 at 12:16 PM, Nick Matzke <mat...@nimbios.org> wrote:
>
>> Hi all,
>>
>> Hi have a series of scripts that print a lot of notes etc. to screen. I
>> have to run them on a massive set of input files. The scripts are
>> self-contained and save the important output to data files in an organized
>> way. I don't need the screen output for anything.
>>
>> Problems:
>>
>> - If I run the script from the R command line, the output printed to
>> Terminal got so huge that it crashed Terminal (I was running 10 of these at
>> once)
>>
>> - I tried R CMD BATCH, but this just created .Rout files that are size
>> 50 GB and counting.
>>
>> I suppose I could be a grownup and refactor all my code with print
>> options that I can turn off, but I would rather be lazy.
>>
>> So, is there a way to run R CMD BATCH or something similar, and NOT print
>> the output to screen or to the .Rout file?
>>
>> I tried:
>>
>> R CMD BATCH --no-save , but that still seems to save the the screen
>> output etc. to .Rout.
>>
>> Thanks,
>> Nick
>>
>
>
> Here is one likely solution to the above question (also, I am now sending
> from the email address that is subscribed to R-help):
>
> Put:
> sink("/dev/null")
>
> ...at the beginning of the script. All screen output now goes to the black
> hole of /dev/null and is not saved.
>
> At the end of the script, put
> sink()
>
> ...to turn this behavior off.
>
> (Tip courtesy of Brian O'Meara)
>
> There may be even easier solutions, if so, I'm still interested, since I
> couldn't find anything obvious googling R CMD BATCH (although this function
> seems to have many options not listed in the help for R CMD BATCH).
>
> Thanks,
> Nick
>
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